There is a new web app up that has all 21,000 potion recipes in Skyrim. Co-creator Jason Bradicich from Adena Studios spoke with GamesBeat.
The app is extremely easy to use, no registration or fee is required. All one has to do is put in the ingredient they have and a list of available combinations will be generated.
The algorithm behind the app is similar to those found in cocktail apps where you put in available ingredients you have and a list will be generated from that.
For those that are interested you can try it here.
Thanks for the tip, GameRanx.